<root><x xmlns="ns" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="_0"/><y z_attr="value" a_attr1="foo" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="_1"/><z><ns:w ns:attr="value" xmlns:ns="myns" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="_2"/></z><Signature xmlns="http://www.w3.org/2000/09/xmldsig#"><SignedInfo><CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/><SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/><Reference URI="#_0"><Transforms><Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/></Transforms><DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/><DigestValue>5jkdJLKVpfEiAQ0k5bnvfCQJKks=</DigestValue></Reference><Reference URI="#_1"><Transforms><Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/></Transforms><DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/><DigestValue>97gNxHth/Gc2wH4FiTiWJJrLaHI=</DigestValue></Reference><Reference URI="#_2"><Transforms><Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/></Transforms><DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/><DigestValue>mXRUtj7KJU3kMPLD9R30CGEiWio=</DigestValue></Reference></SignedInfo><SignatureValue>CRK8LTGiMM5p++3usB6Nxjg5WrPfvq97bFzHwtt9Sijqf1BqqCHLnQLxzhtPR7j6g0TJaQt4bmF8neO7IwgloSWX/ZXUl9dz5Ax9IMfESBI0L8Ew2BE1osZp3Nlc0xSSIVFKMfo9gvqi317jBkr/VklqjHXjMfhtGv8GATpdwPQ=</SignatureValue></Signature></root>